Named By: Woodwood - 1889.
Classification: Chordata, Chondrichthyes, Elasmobranchii, Batoidea, Sclerorhynchoidea, Sclerorhynchidae.
Species: S. atavus (type). Possibly also S. karakensis and S. pettersi.
Size: Up to 1 meter long.
Known locations: USA and the Middle East.
Time period: Late Cretaceous.
Fossil representation: Several specimens.
Sclerorhynchus was in essence an ancient sawfish. The snout was long and specialised teeth projected out from the sides. This snout was probably the primary feeding aid in uncovering buried invertebrates like shell fish which could then be eaten by the mouth which was on the underside of the head. There has been some speculation that the genus Ganopristis may be the same as Sclerorhynchus.
- Catalogue of the Fossil Fishes in the British Museum (Natural History) Part 1 1-613, A. S. Woodward.